Water cooling on FGF extruder configuration
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Hi,
I am working on a 1x1x1 meter FGF (pellet extruder) printer. The extruder exists out of 3 x 500 watt heating zones at the bottom of the extruder and a water cooled hopper at the top of the extruder.
The water cooling is there to prevent the pellets from melting / fusing before they enter the extruder chamber.
Right now I have configure the water cooler as a PWN Fan with thermostatic control. The problem here is that the fan always runs at 50% which is too much to heep a specific temperature. What I want is to configure this water pump as an inverted heater. It only has to run a few seconds every minute to keep the temperature at the desired set point.
If I configure the pump as heater using a !-mark I get an error because the system thinks the heater is heating so slowly.
What would be the best way to configure such a configuration?
Thanks
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Since you don't need fine grained heater control, perhaps you could use daemon.g to monitor the temp and just switch on the cooler for a short while and then go to sleep again. If the temp gets too high, also switch it on for a short while.
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@Phaedrux
That works indeed! Thanks. -
@tfranssen you can specify proportional control of a thermostatic fan by providing two temperatures in the M106 command.
